Secitons show a proliferation of tubulocystic structures linned by flat or cuboidal epithelium without atypia or mitosis.
Adenomatoid tumor commonly affects testicualr adnexa, falopian tube , ovary hilus or the broad ligament. Rarely, it is identified as intramural nodules, most commonly located as solitary nodules toward the outer myometrium. However, rarely intramural nodules affect the inner myometrium and even presents with menorrhagia. They may be also rarely identified in the endometrial curetting in some cases. This is an unquestionable case of Adenomatoid Tumor not requiring IHC for confirmation. If confirmation required, ideal stains are Calretinin, WT1 and ER.